EP0579528B1 - Implant intra-oculaire souple - Google Patents
Implant intra-oculaire souple Download PDFInfo
- Publication number
- EP0579528B1 EP0579528B1 EP93401744A EP93401744A EP0579528B1 EP 0579528 B1 EP0579528 B1 EP 0579528B1 EP 93401744 A EP93401744 A EP 93401744A EP 93401744 A EP93401744 A EP 93401744A EP 0579528 B1 EP0579528 B1 EP 0579528B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intraocular implant
- optic
- implant according
- contact portion
- implant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000007943 implant Substances 0.000 title claims abstract description 49
- 239000000017 hydrogel Substances 0.000 claims abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 31
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000000887 face Anatomy 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 208000002177 Cataract Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 210000004127 vitreous body Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
- A61F9/0017—Introducing ophthalmic products into the ocular cavity or retaining products therein implantable in, or in contact with, the eye, e.g. ocular inserts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
Definitions
- the present invention relates to an intraocular implant produced made of a flexible material.
- Intraocular implants are corrective systems of human vision which can, in a number of cases, replace contact lenses or corrective lenses external. In other cases, these implants can be combined by example with corrective lenses to obtain a correction suitable for vision.
- An intraocular implant consists of essentially of an optical part of generally circular shape or slightly ovalized which forms the corrective optical system well said. It also has a haptic part which is used to fitting and fixing of the optical part inside the eye in the proper position.
- cataract operation is now the most often using the operating technique known as phacoemulsification.
- This technique allows the opaque lens to be removed by the introduction in the eye of an ultrasound probe with a system irrigation / suction. By the combined action of ultrasound and flow of BBS, the lens is removed by emulsification.
- This operating technique has the advantage over prior techniques of requiring only the making of an incision of reduced dimension in the cornea to introduce into the eye the equipment required for this removal.
- the incision must necessarily have a dimension sufficient to allow at least the optical part of the implant to pass whose diameter is of the order of 6 mm.
- the realization of the haptic part of the implant raises particular problems for ensure proper fixation and positioning of the implant to inside the eye, especially when this implant is placed in the capsular bag.
- the optical part develops sufficient holding force to avoid the risks of the implant being ejected from the capsular bag.
- An object of the present invention is to provide an intraocular implant monobloc, in particular for capsular bag and produced in one flexible material which comprises a haptic part ensuring a improved implant positioning and retention compared to prior art solution.
- An implant according to the preamble of claim 1 is known from EP-A-255759.
- the implant according to the invention is defined in claim 1. Thanks to the use of a flexible material, the optical part can be folded or rolled to facilitate insertion of the implant into the eye. However, thanks in particular to the shape of the contact portions, the implant is properly held in the eye, which avoids risk of ejection of the implant when it is placed in the capsular bag.
- one of the faces of the haptic part is defined by a portion of toric surface whose axis is the axis of revolution of the optical part. So when the implant is placed in the capsular bag and subjected to pressure, the fasteners are subject to a winding effect which is similar to the arch effect found in type implants classic with non-closed handle in C or J shape.
- each connecting arm has a thickness in a perpendicular direction in terms of the optical part which increases from the periphery from the optical part to the contact portion and whose width in the plan of the optical portion decreases in such a way that we have substantially a constant section of said arms.
- the intraocular implant has an optical part 10 and two fixing elements 12 and 14.
- the part optic 10 is circular and preferably its diameter D is equal to 6 mm.
- the optical part is constituted in the example represented by two convex surfaces. At its periphery, the optical part 10 has a thickness e which is, in the example considered, equal to 0.22 mm. All the implant is made in one piece and preferably in hydrogel.
- the two fixing elements of the optical part 12 and 14 are identical and are symmetrical with respect to the axis XX 'passing through the center O of the optical part 10. We will therefore only describe the element 12 of the haptic part.
- the fastener 12 is constituted by a contact portion 16 and by two arms of connection respectively referenced 18 and 20 which connect the ends 16a and 16b of the contact portion at the periphery of the portion haptic 10. Represented by C1, C2 is the neutral fiber of the portion of contact. This is of course centered at the center O of the optical part and the corresponding external diameter D ′ is preferably equal to 11 mm.
- one of the faces 12a, 14a of the fastening elements 12, 14 is arranged on a surface portion toric T shown in dotted lines.
- This portion of torus is defined by the rotation of a circle with center O 'and radius R1 around the axis ZZ'. During this rotation, the center O 'describes a circle of diameter D3.
- the radius R1 is between 5 and 30mm and the diameter D3 is between 5 and 30 mm.
- the length of the cord C underlying the semicircle C1, C2 is at least equal to the diameter D of the optical part.
- the connection arms 18 and 20 leave tangentially from the periphery 10a of the optical part to also connect tangentially to the ends of the portion of contact 16 so as to avoid any angular point. If we consider the set of two arms 18 or two arms 20, we see that their external contour 24 or 26 is concave and connects tangentially to the periphery 10a of the optical part 10. It can be seen that the arms of connection 18 and 20 and of the contact portion 16 define a window 22 hollowed out.
- the thickness e of the contact portion 16 in a direction perpendicular to the plane of the optical part 10 is equal to 0.45 mm.
- the arms of connection have a thickness which increases from the periphery 10a of the optical part up to the ends 16a and 16b of the contact portion 16.
- the width of each arm 18 or 20 in the plane of the optical part 10 goes in decreasing from the periphery of the optical part to the ends of the contact portion.
- the presence of the hollowed out windows 22 provides at least three advantages. On the one hand, it facilitates the folding of the implant around the diameter YY ′ of the optical part constituting an axis of symmetry for the entire implant. On the other hand, it allows a deformation of the contact portions 16 which can thus be adapted to diameters different internal eyes or the deformation of the capsular bag due to removal of the lens. Finally, these windows allow circulation watery or vitreous humor from side to side of the implant.
- the haptic part is made up by two fixing elements.
- the haptic part consisted of three or four sets of fixation.
- the fixing assemblies are angularly distributed around the periphery of the optical part.
- the invention only exploits the properties of flexibility and pliability of the hydrogel and not its properties hydrophilic.
- the implant according to the invention could therefore just as well be made of another flexible material such as silicone which is also well known for making intraocular implants.
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
Description
- la figure 1 est une vue en plan de l'implant intra-oculaire;
- la figure 2 est une vue de côté de l'implant de la figure 1, et
- la figure 3 est une vue de côté de l'implant montrant plus précisément la forme de la partie haptique.
Claims (9)
- Implant intra-oculaire monobloc réalisé en un matériau souple et comportant une partie optique (10) sensiblement circulaire et une partie haptique, ladite partie haptique comportant deux éléments de fixation (12, 14) symétriques par rapport à un diamètre de la partie optique, chaque élément comportant une portion de contact (16) destinée à venir en contact avec la paroi interne de l'oeil et deux bras de raccordement (18, 20) pour raccorder respectivement chaque extrémité (16a, 16b) de la portion de contact à la périphérie (10a) de la partie optique, chaque portion de contact ayant sensiblement la forme d'un arc-de-cercle (C1, C2) caractérisé en ce que cet arc-de-cercle a sensiblement le même centre que la partie optique, la longueur de la corde soutendant ledit arc étant au moins égale au diamètre (D) de la partie optique.
- Implant intra-oculaire selon la revendication 1, caractérisé en ce que une des faces (12a, 14a) de la partie haptique est définie par une portion de surface torique (T) ayant comme axe l'axe de révolution (ZZ') de la partie optique (10).
- Implant intra-oculaire selon l'une quelconque des revendications 1 et 2, caractérisé en ce que chaque bras de raccordement (18, 20) a une épaisseur selon une direction perpendiculaire au plan de l'optique qui va en augmentant depuis la périphérie (10a) de la partie optique jusqu'à la portion de contact (16) et une largeur dans le plan de l'optique qui va en diminuant de la périphérie de la partie optique vers ladite portion de contact.
- Implant intra-oculaire selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il est réalisé en hydrogel.
- Implant intra-oculaire selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il est réalisé en silicone.
- Implant intra-oculaire selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le diamètre externe des deux portions de contact (16) est de l'ordre de 11 mm.
- Implant intra-oculaire selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le contour externe (24, 26) de deux bras de raccordement correspondants (18, 20) est concave et se raccorde tangentiellement au contour externe de la partie optique (10).
- Implant intra-oculaire selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'épaisseur des portions de contact (16) est de 0,45 mm.
- Implant intra-oculaire selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la périphérie de ladite partie optique a une épaisseur de 0,22 mm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9208811 | 1992-07-16 | ||
FR9208811A FR2693649B1 (fr) | 1992-07-16 | 1992-07-16 | Implant intra-oculaire souple. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0579528A1 EP0579528A1 (fr) | 1994-01-19 |
EP0579528B1 true EP0579528B1 (fr) | 1998-03-18 |
Family
ID=9431969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93401744A Expired - Lifetime EP0579528B1 (fr) | 1992-07-16 | 1993-07-06 | Implant intra-oculaire souple |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0579528B1 (fr) |
AT (1) | ATE164057T1 (fr) |
DE (1) | DE69317487T2 (fr) |
ES (1) | ES2115740T3 (fr) |
FR (1) | FR2693649B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8382832B2 (en) | 2003-12-09 | 2013-02-26 | Abbott Medical Optics Inc. | Foldable intraocular lens and method of making |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2723691B1 (fr) * | 1994-08-22 | 1997-01-24 | Philippe Crozafon | Implant intra-oculaire |
FR2740969B1 (fr) * | 1995-11-13 | 1998-02-13 | W K Et Associes | Implant intraoculaire souple |
FR2745711B1 (fr) * | 1996-03-05 | 1998-05-07 | Ioltechnologie Production | Implant souple formant lentille intraoculaire de chambre posterieure |
FR2748200B1 (fr) | 1996-05-03 | 1998-09-25 | W K Et Associes | Implant intraoculaire monobloc souple |
FR2765797B1 (fr) * | 1997-07-08 | 1999-11-26 | Corneal Ind | Implant intraoculaire monobloc souple |
FR2776181B1 (fr) * | 1998-03-20 | 2000-08-11 | Chauvin Opsia | Lentille intraoculaire monobloc souple |
US6468306B1 (en) | 1998-05-29 | 2002-10-22 | Advanced Medical Optics, Inc | IOL for inhibiting cell growth and reducing glare |
FR2792825B1 (fr) * | 1999-04-30 | 2001-06-29 | Ioltechnologie Production | Implant de chambre posterieure aphake chez le myope fort |
FR2819713B1 (fr) * | 2001-01-25 | 2004-01-23 | Corneal Ind | Implant intraoculaire monobloc souple |
DE102004021755A1 (de) * | 2004-04-30 | 2005-11-17 | Humanoptics Ag | Intraokularlinse |
US7569073B2 (en) | 2004-12-29 | 2009-08-04 | Bausch & Lomb Incorporated | Small incision intraocular lens with anti-PCO feature |
CN103655002A (zh) * | 2013-12-13 | 2014-03-26 | 无锡合众信息科技有限公司 | 一种水凝胶人工晶体及其制备方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3119002A1 (de) * | 1981-05-13 | 1982-12-02 | INPROHOLD Establishment, 9490 Vaduz | Hinterkammer-implantationslinse |
US4619662A (en) * | 1985-04-19 | 1986-10-28 | Juergens Jr Albert M | Intraocular lens |
US4704123A (en) * | 1986-07-02 | 1987-11-03 | Iolab Corporation | Soft intraocular lens |
EP0289449A1 (fr) * | 1987-05-01 | 1988-11-02 | Aziz Y. Anis | Lentille de chambre postérieure |
SU1553109A1 (ru) * | 1987-06-30 | 1990-03-30 | Всесоюзный Научно-Исследовательский Институт Глазных Болезней | Искусственный хрусталик глаза |
US4834750A (en) * | 1987-09-17 | 1989-05-30 | Ioptex Research, Inc. | Deformable-elastic intraocular lens |
-
1992
- 1992-07-16 FR FR9208811A patent/FR2693649B1/fr not_active Expired - Fee Related
-
1993
- 1993-07-06 AT AT93401744T patent/ATE164057T1/de not_active IP Right Cessation
- 1993-07-06 ES ES93401744T patent/ES2115740T3/es not_active Expired - Lifetime
- 1993-07-06 EP EP93401744A patent/EP0579528B1/fr not_active Expired - Lifetime
- 1993-07-06 DE DE69317487T patent/DE69317487T2/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8382832B2 (en) | 2003-12-09 | 2013-02-26 | Abbott Medical Optics Inc. | Foldable intraocular lens and method of making |
Also Published As
Publication number | Publication date |
---|---|
ES2115740T3 (es) | 1998-07-01 |
EP0579528A1 (fr) | 1994-01-19 |
FR2693649A1 (fr) | 1994-01-21 |
FR2693649B1 (fr) | 1994-10-14 |
DE69317487D1 (de) | 1998-04-23 |
ATE164057T1 (de) | 1998-04-15 |
DE69317487T2 (de) | 1998-10-01 |
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